The Type or Namespace Upload Does Not Exist in Persits

Chapter 3: Uploading to Memory Chapter 1: Introduction

Chapter 2. Uploading Files and Text Items

2.1 A Simple Upload Form
2.two FILES and Form Collections
two.three Usage under .Net
two.four Referencing Individual File and Form Items
2.v Unique File Proper noun Generation
two.6 Setting File Size Limits
2.seven Placing a Form and Script in the Same File

The post-obit HTML form (located in the sample file Form1.asp) enables a user to select upward to three files for uploading to the server:

<HTML>
<Body BGCOLOR="#FFFFFF">
<FORM METHOD="Mail service" ENCTYPE="multipart/form-data" ACTION="UploadScript1.asp">
<INPUT Type="FILE" SIZE="twoscore" NAME="FILE1"><BR>
<INPUT TYPE="FILE" SIZE="40" NAME="FILE2"><BR>
<INPUT Type="FILE" SIZE="twoscore" NAME="FILE3"><BR>
<INPUT TYPE=SUBMIT VALUE="Upload!">
</FORM>
</Torso>
</HTML>

If your browser supports HTML5, the 3 file items on the form higher up can be replaced by a single file particular with the multiple aspect, as follows:

<INPUT Blazon="FILE" SIZE="40" Name="FILE1" multiple="multiple"><BR>

Find the ENCTYPE="multipart/form-data" attribute in the <Course> tag. It instructs the browser to transport the entire file to the server and not only the file name entered in the input text box. Information technology is absolutely mandatory that your upload forms contain this attribute, or no uploading tin be performed.

This form contains three items <INPUT Type="FILE"> which appear on the page every bit text boxes with the Browse push button next to them. Each box can be used to select one file only. While the SIZE attribute of an <INPUT TYPE="FILE"> item is optional, the Name attribute is required.

This grade invokes the upload script UploadScript1.asp shown below:

<HTML>
<BODY>
<%
Set Upload = Server.CreateObject("Persits.Upload")
Count = Upload.Relieve("c:\upload")
Response.Write Count & " file(s) uploaded to c:\upload"
%>
</BODY>
</HTML>

The beginning line of the ASP script simply creates an instance of the AspUpload object. The second line calls the Salvage method of the component which actually performs the upload: information technology parses the information POSTed by the browser, figures out how many files are beingness uploaded, and saves them in a specified local directory on the server under their original names.

The Save method returns the number of files successfully uploaded. In case of an error this method will throw an exception.

Click the links below to run this code sample:

http://localhost/aspupload/02_simple/Form1.asp
http://localhost/aspupload/02_simple/Form1.aspx

Due to the "multipart/course-data" attribute of upload forms, your ASP script can no longer use the built-in Request.Course collection to access private form items. AspUpload solves this problem by offering 2 collections of its own, Upload.Files and Upload.Course to provide access to uploaded files and text fields, respectively.
Upload.Files is a collection of UploadedFile objects which offering access to diverse properties and attributes of uploaded files, such every bit filename, path, size, hash value, etc. The UploadedFile object besides offers many methods which enable you to manipulate uploaded files (copy, movement, salvage to the database, delete, etc.) Individual items of the collection tin be referenced via numeric or string indices, or iterated through via the For-Each statement.

Upload.Course is a collection of FormItem objects that correspond text fields on an upload grade. Upload.Course is similar to Request.Form and should be used instead of the latter in your upload script. The FormItem object provides two properties, Name and Value.

The utilize of the Files and Form collections is demonstrated by the sample files Form2.asp and UploadScript2.asp:

<HTML>
<BODY BGCOLOR="#FFFFFF">
<FORM METHOD="Mail service" ENCTYPE="multipart/form-data" Action="UploadScript2.asp">
File i:<INPUT Blazon=FILE NAME="FILE1">
Description 1:<INPUT Type=TEXT NAME="DESCR1"><BR>
File 2:<INPUT Blazon=FILE NAME="FILE2">
Clarification 2:<INPUT Type=TEXT NAME="DESCR2"><BR>
<INPUT TYPE=SUBMIT VALUE="Upload!">
</Form>
</BODY>
</HTML>

This class contains both <INPUT Blazon=FILE> and regular <INPUT TYPE=TEXT> items. Information technology invokes the script UploadScript2.asp:

<HTML>
<BODY>
<%
Fix Upload = Server.CreateObject("Persits.Upload.one")
Upload.Salvage "c:\upload"
%>

Files:<BR>
<%
For Each File in Upload.Files
Response.Write File.Name & "= " & File.Path & " (" & File.Size &" bytes)<BR>"
Side by side
%>

<P>

Other items:<BR>
<%
For Each Detail in Upload.Form
Response.Write Item.Name & "= " & Particular.Value & "<BR>"
Next
%>
</BODY>
</HTML>

Click the link below to run this code sample:

http://localhost/aspupload/02_simple/Form2.asp

The output should wait similar to this:

Files:
FILE1=c:\upload\File1.xls (108544 bytes)
FILE2=c:\upload\File2.zip (211687 bytes)

Other items:
DESCR1=bla bla
DESCR2=test test

IMPORTANT: The Upload.Files and Upload.Grade collections are populated by the Upload.Salvage method. Therefore, it is incorrect to reference either collection earlier the Save method is called:

' Incorrect!
Upload.Salve( Upload.Course("Path") )

1. Enable ASP Compatibility Mode
AspUpload 3.0 is not a native ASP.NET component. It was written specifically for archetype ASP, and it uses many intrinsic ASP objects such as Request. Therefore, yous must enable the classic ASP compatibility mode for all pages using AspUpload past setting the aspCompat aspect of the @Page directive to True:

<%@ Page aspCompat="True" other attributes%>

Failure to practice so will result in the run-fourth dimension fault

There is no MTS object context

ii. Use Wrapper Assembly

Create a \bin subdirectory under your ASP.NET application and place the wrapper associates ASPUPLOADLib.dll in it. Alternatively, you tin place this file in the Global Assembly Enshroud. The file ASPUPLOADLib.dll is included in the setup AspUpload.exe. You may as well re-create this file using the command-line utility TLBIMP.

For more information, come across the knowledge base article PS020704100.

The following script written in C# demonstrates AspUpload'due south usage nether .Cyberspace:

<%@ Page aspCompat="True" %>
<%@ Import Namespace="Organization.Spider web" %>
<%@ Import Namespace="System.Reflection" %>
<%@ Import Namespace="ASPUPLOADLib" %>
<script runat="server" Linguistic communication="C#">
void Page_Load(Object Source, EventArgs E)
{
ASPUPLOADLib.IUploadManager objUpload;
objUpload = new ASPUPLOADLib.UploadManager();

int Count = objUpload.Save("c:\\upload", Missing.Value, Missing.Value);

// iterate through Files collection
foreach( ASPUPLOADLib.IUploadedFile objFile in objUpload.Files )
{
txtFiles.InnerHtml += objFile.Proper name + "= " + objFile.Path + " (" + objFile.Size + " bytes)<BR>";
}

// iterate through Class collection
foreach( ASPUPLOADLib.IFormItem objItem in objUpload.Grade )
{
txtFormItems.InnerHtml += objItem.Name + "= " + objItem.Value + "<BR>";
}
}
</script>

<html>
<body>
Files:<BR>
<div id="txtFiles" runat="server"/><P>
Form Items:<BR>
<div id="txtFormItems" runat="server"/><P>
</trunk>
</html>

Click the link below to run this code sample:

http://localhost/aspupload/02_simple/Form2.aspx

The previous code sample uses the For-Each loop to iterate through the Files and Course drove. It is also possible to reference private file and course items via integer or string indices, for instance:
Descr1 = Upload.Grade("DESCR1")

or

Descr1 = Upload.Form(one)

When referencing an individual item from the Files collection, information technology is a good thought to cheque whether a file was actually selected via the referenced input type=file box, as follows:

Ready File = Upload.Files("FILE1")
If Non File Is Nothing Then
Response.Write File.Path
Terminate If

The Upload.Class collection is not entirely identical to Request.Form equally it handles multi-select form items such as <SELECT MULTIPLE> differently.

The sample files Form3.asp and UploadScript3.asp (non shown here) demonstrate how to handle all basic input form items with the Upload.Grade collection. Click the link below to run this code sample:

http://localhost/aspupload/02_simple/Form3.asp
http://localhost/aspupload/02_simple/Form3.aspx

Past default, AspUpload overwrites existing files in the upload directory. In a multi-user environment, this is undesirable, equally multiple users may upload files with the same name.
AspUpload can be configured to generate unique names for the files beingness uploaded to forbid overwriting existing files in the upload directory. This is done by setting UploadManager's OverwriteFiles holding to Simulated earlier calling Upload.Save, equally follows:

Upload.OverwriteFiles = Fake

To prevent name collisions, AspUpload appends the original file proper name with an integer number in parentheses. For example, if the file MyFile.txt already exists in the upload directory, and another file with the same name is being uploaded, AspUpload will save the new file under the name MyFile(i).txt. If more copies of MyFile.txt are uploaded, they will exist saved under the names MyFile(ii).txt, MyFile(3).txt, etc.

AspUpload is capable of enforcing file size limits by rejecting or truncating uploaded files as specified past the SetMaxSize method. By default, any size files are accepted (as long as the total upload does not exceed 2 GB).
The SetMaxSize method expects two arguments: the maximum file size (in bytes) and a flag indicating whether a file exceeding the limit should be rejected with an error exception thrown (if set to Truthful) or truncated (if set up to Fake).

A value fix by SetMaxSize is applied to each uploaded file individually rather than an entire upload. Since AspUpload has no style of knowing in advance how many files there are in a POST and how big they are, it will always allow the upload process to go through, fifty-fifty if the very first file exceeds the specified limit.

The sample files Form4.asp and UploadScript4.asp demonstrate a file upload system with file size limit enforced. Here is what the upload script looks like:

<HTML>
<BODY>
<%
Set Upload = Server.CreateObject("Persits.Upload")
' Limit file size to 50000 bytes, throw an exception if file is larger
Upload.SetMaxSize 50000, Truthful

' Intercept all exceptions to display user-friendly error
On Error Resume Side by side

' Perform upload
Upload.Relieve "c:\upload"

' 8 is the number of "File too big" exception
If Err.Number = 8 Then
Response.Write "Your file is too large. Please try again."
Else
If Err <> 0 Then
Response.Write "An error occurred: " & Err.Description
Else
Response.Write "Success!"
Finish If
End If
%>

</Torso>
</HTML>

Click the link below to run this code sample:

http://localhost/aspupload/02_simple/Form4.asp

If the Upload.Save method is chosen in a script invoked directly rather than via a multipart/course-information form, the following error will occur:
Persits.Upload.ane (0x800A003D)
Incorrect Content-Type. Brand sure you have included the aspect ENCTYPE="multipart/form-data" in your form.

This creates a problem if you lot want to place both your form and the corresponding upload script in the same file. To avoid this error, set the property Upload.IgnoreNoPost to True.

The code sample BothFormAndScript.asp demonstrates the usage of this holding.

<%
Ready Upload = Server.CreateObject("Persits.Upload")
' Practice not throw the "Wrong ContentType error first fourth dimension out
Upload.IgnoreNoPost = True
Count = Upload.Salvage("c:\upload")
If Count > 0 And so
Response.Write Count & " file(s) uploaded."
End If
%>

<HTML>
<Torso BGCOLOR="#FFFFFF">
<h3>Simple Upload</h3>
<FORM METHOD="Postal service" ENCTYPE="multipart/grade-data" Activeness="BothFormAndScript.asp">
<INPUT Type="FILE" SIZE="twoscore" NAME="FILE1"><BR>
<INPUT TYPE="FILE" SIZE="40" Proper name="FILE2"><BR>
<INPUT TYPE="FILE" SIZE="xl" Proper noun="FILE3"><BR>
<INPUT Blazon=SUBMIT VALUE="Upload!">
</Class>
</BODY>
</HTML>

Click the link below to run this code sample:

http://localhost/aspupload/02_simple/BothFormAndScript.asp

grantnottakeling.blogspot.com

Source: http://www.aspupload.com/manual_simple.html

The Type or Namespace Upload Does Not Exist in Persits

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